Type 1a supernovae -- the "standard candles" of the universe -- occur when two stars are born together but go through their life stages at different times. Learn all about these star explosions in the 12th episode of "We Don't Planet."
Type 1a supernovae -- the "standard candles" of the universe -- occur when two stars are born together but go through their life stages at different times. Learn all about these star explosions in the 12th episode of "We Don't Planet."
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